What Dana said! In most cases, tip overlays are strictly decorative...except for the softer woods like yew and ERC. I have used antler, hardwoods, bone and leather saturated with super glue for overlays. As long as the mating surfaces of the bow tip and overlays are well matched, you should have no problem putting overlays on. I usually preshape the overlay first before glueing. Makes it easier than trying to shape after they are glued down. I have used gel type super glue, regular super glue, TB glues and epoxy to attach tip overlays. Pat